<!DOCTYPE html>
<html lang="en">
<head>
<title>Ch01-01 Hello</title>
</head>
<body>
<script>
  function doAddition(no1Number, no2Number) {
    let result = no1Number + no2Number;
    alert("Result: " + result);
  }
</script>
<h1>Begin to code with JavaScript</h1>
<h2>Hello</h2>
<p>Welcome to Begin to code with JavaScript.</p>
<p>This page has hidden secrets!</p>
<p>Press function key F12 to investigate.</p>
</body>
</html>